2x2 EG1 U 4 algorithm

Solve the remaining 2x2 corners when the completed first face has an adjacent swap in its layer.

EG1 U 4 belongs to the U group in EG 1.

Recognize this starting position

In the inverse-derived training position, the upper-face color points upward at these corner positions: UFR, UFL. Reading each side’s upper corner stickers left to right when facing that side gives F: R L; R: F B; B: U U; L: B F. The letters identify colors by their reference faces.

Execute the algorithm

y R' F R F' R' F R2 U' R'

The opening is y R' F; the final segment is R2 U' R'. This version contains 9 face, wide, or slice turns and 1 whole-puzzle rotation.